RE4F04A Shift Kit 1993, new and ready to install. Fits the RE4F04A. Ships fast from the USA.
A 1993 Nissan Maxima, Altima or Quest, or a Mercury Villager, that drops into neutral at a stop once it is hot, loses 3rd gear after a kickdown, or burns the 3-4 clutches again a year after a rebuild is showing the classic RE4F04A valve body and sealing problems. This is the TransGo SK RE4F04A, the A and V model kit TransGo built for exactly those complaints, and it goes in during a valve body service or an overhaul.
The RE4F04A (Ford called its Villager version the 4F20E) is a Jatco four-speed front-drive automatic. The computer picks the gear through shift solenoids and sets line pressure through an EPC solenoid, but the valves, springs and checkballs in the valve body decide how that pressure actually reaches the clutches. TransGo's instructions explain the trouble spots. The 1-2 regulator valve wears its bore until it sticks, so the kit has you chamfer the partition by hand and install a new spring and washer on the 2nd accumulator. The pressure limit valves get two orange springs and larger .265 steel balls after you open the drain holes with a 1/4 inch drill, which TransGo says prevents drum blowout and planet failure from runaway line pressure. It also includes high-temperature, low-shrink sealing rings and an upgraded inner seal for the 3rd (direct) clutch piston, the seal that rotating force tends to open up.
Pull codes first. A dead shift or EPC solenoid makes every gear feel wrong, and no spring change will fix it; our solenoid testing guide covers the resistance checks. Transmission Digest also documents a stuck idle or wide-open-throttle switch on these Nissan units that commands high line pressure and late upshifts, so check throttle input with a scan tool as shown in How to Read Transmission Live Data. If the engine flares between gears rather than sliding through them, read Shift Flare vs Slip before you decide this is a valve body job.
TransGo's identification sheet splits the RE4F04A family by how the internal solenoid harness exits the case. On A and V models the solenoid wires extend outside the case, and that is what this kit fits: 1992-99 Maxima and Altima, the 2004 Maxima SL, 1993-2002 Quest, 1993-2002 Mercury Villager and 1995-99 Infiniti I30. B models, where the harness stays inside the case (2000-03 Maxima, 2000-06 Altima, 2000-06 Sentra SE-R 2.5, 2000-01 I30, 2002 I35), take a different kit, and the small-case RE4F03 used in the Sentra, 200SX and G20 takes its own. A-body valve bodies also show two holes in the identification area where B bodies show one. TransGo is blunt about it: only use the kit that matches the valve body. If you are not sure, send us your year and VIN or a photo of the valve body. Other RE4F04A parts are listed in our hard parts section, and the 1993-02 listing covers the same transmission family.
Refill with the Nissan Matic fluid your owner's manual lists. TransGo notes that the factory cold level runs low and suggests the hot level sit roughly 1/4 to 3/8 inch above the full mark.
| Fits | RE4F04A 1993 |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
No. TransGo groups 2000-06 Altima as a B model, where the solenoid harness stays inside the case, and it takes the SK RE4F04B kit. This kit is for the A and V models such as 1992-99 Maxima and Altima, 1993-2002 Quest and Villager, and 1995-99 I30.
Yes, the valve body portion can be done in the car. Skip the sealing ring page, which only applies when the unit is out and apart.
That is the first complaint TransGo lists for this kit. Check fluid level hot and scan for solenoid codes first, then install the kit during a valve body service.
TransGo recommends it on any overhaul or repair, noting these transmissions tend to need a new EPC solenoid around 70,000 miles.
Use the Nissan Matic fluid your owner's manual lists for your year. Check the level hot; TransGo suggests about 1/4 to 3/8 inch above the full mark.
